Using these detachable fake collars is a breeze. Just simply attach them to your shirt or blouse, and you're all set to add a fashionable touch to your outfit. When it comes to maintenance, since they're made of cotton, you can gently hand - wash them in cold water with a mild detergent. Avoid using bleach as it may damage the fabric. Hang them to dry, and they'll be ready for your next use. Also, store them in a cool and dry place to keep them in good condition. Be careful not to pull or tug too hard on the collar while attaching or detaching it to prevent any damage.